Paranoia about DegradedArray
I got the message (via email)
This is an automatically generated mail message from mdadm
running on april
A DegradedArray event had been detected on md device /dev/md0.
Faithfully yours, etc.
P.S. The /proc/mdstat file currently contains the following:
Personalities : [raid1]
md0 : active raid1 hda3[0]
242219968 blocks [2/1] [U_]
unused devices: <none>
Now I gather from what I've googled that somehow I've got to get the RAID
to reestablish the failed drive by copying from the nonfailed drive.
I do believe the hardware is basically OK, and that what I've got is
probably a problem due to a power failure (We've had a lot of these
recently) or something transient.
(a) How do I do this?
(b) is hda3 the failed drive, or is it the one that's still working?
-- hendrik
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